Get close enough to this raven and you’ll set off the PIR sensor, which triggers lighting and sound effects, including some spooky glowing and blinking red eyes, general cawing, and of course ...
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HowToGeek on MSN9 Reasons I Use mmWave Sensors in My Smart HomemmWave stands for millimeter wave and describes the wavelengths of the radio waves that are used by these sensors, which are ...
a passive infrared sensor (PIR) sensor coupled with a Zigbee interface. Inside the ultrasonic welded case is a small PCB and a Fresnel lens on the inside of the top cover, and a small PCB for the ...
When a person walks past the sensor, it detects a rapid change of infrared energy and sends a signal. PIR sensors are used for applications such as automatically turning on lights when someone ...
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